function gmp_link($params)
{
    $clientId = $params['client_id'];
    $clientSecret = $params['client_secret'];
    $testmode = $params['testmode'];
    $invoiceid = $params['invoiceid'];
    $description = $params["description"];
    $amount = $params['amount'];
    # Format: ##.##
    $currency = $params['currency'];
    # Currency Code
    $mp = new MP($clientId, $clientSecret);
    $preference_data = array("external_reference" => $invoiceid, "items" => array(array("title" => $description, "quantity" => 1, "currency_id" => $currency, "unit_price" => (double) $amount)));
    $preference = $mp->create_preference($preference_data);
    $initPoint = $testmode ? $preference['response']['sandbox_init_point'] : $preference['response']['init_point'];
    $code = '<a href="' . $initPoint . '">Pagar</a>';
    return $code;
}

 public function transition()
 {
     $this->load->model('checkout/order');
     $this->load->model('account/customer');
     $order_id = $this->session->data['order_id'];
     $token = $this->request->post['token'];
     $bran = $this->request->post['bran'];
     $installments = (int) $this->request->post['installments'];
     $total = $this->request->post['total'];
     $issuer = $this->request->post['issuer'];
     $cardNumber = $this->request->post['cardNumber'];
     $cardExpirationMonth = $this->request->post['cardExpirationMonth'];
     $cardExpirationYear = $this->request->post['cardExpirationYear'];
     $cardholderName = $this->request->post['cardholderName'];
     $docType = $this->request->post['docType'];
     $docNumber = $this->request->post['docNumber'];
     $order_info = $this->model_checkout_order->getOrder($order_id);
     $customer = $this->model_account_customer->getCustomer($order_info['customer_id']);
     $products = array();
     foreach ($this->cart->getProducts() as $product) {
         $products[] = array('id' => $product['model'], 'title' => $product['name'], 'description' => $product['name'], 'picture_url' => $product['image'], 'quantity' => $product['quantity'], 'unit_price' => $product['price']);
     }
     $cellphone = preg_replace('/[\\D]/', '', $order_info['cellphone']);
     $area_code = substr($cellphone, 0, 2);
     $number = substr($cellphone, 2);
     $param = array('transaction_amount' => (double) number_format($total, 2, '.', ''), 'token' => $token, 'description' => 'Compra realizada na ' . $this->config->get('config_name'), 'installments' => $installments, 'payment_method_id' => $bran, 'payer' => array('email' => $order_info['email']), 'external_reference' => $order_id, 'statement_descriptor' => $this->config->get('config_name'), 'notification_url' => $this->url->link('payment/mercadopago_card/callback', '', 'SSL'), 'additional_info' => array('items' => $products, 'payer' => array('first_name' => $order_info['firstname'], 'last_name' => $order_info['lastname'], 'phone' => array('area_code' => $area_code, 'number' => $number), 'address' => array('zip_code' => preg_replace('/[\\D]/', '', $order_info['payment_postcode']), 'street_name' => $order_info['payment_address_1'], 'street_number' => $order_info['payment_number_home']), 'registration_date' => $customer['date_added']), 'shipments' => array('receiver_address' => array('zip_code' => $order_info['shipping_postcode'], 'street_name' => $order_info['shipping_address_1'], 'street_number' => $order_info['shipping_number_home'], 'floor' => $order_info['shipping_address_2']))));
     require_once DIR_SYSTEM . '/library/mercadopago/mercadopago.php';
     $mp = new MP($this->config->get('mercadopago_card_access_token'));
     $payment = $mp->post('/v1/payments', $param);
     $this->confirm($payment);
     $this->load->model('payment/mercadopago_card');
     $this->model_payment_mercadopago_card->addCardMercadoPago($order_id, $this->request->post['creditCardHolderName'], $this->request->post['cvv'], $this->request->post['expirationMonth'] . '/' . $this->request->post['expirationYear'], $this->request->post['cardNumber'], $this->request->post['installmentQuantity'], $this->request->post['brand'], $payment['response']['code']);
     $this->response->addHeader('Content-Type: application/json');
     $this->response->setOutput(json_encode(array()));
 }

 public function transition()
 {
     $this->load->model('checkout/order');
     $this->load->model('account/customer');
     $this->load->model('extension/simulator_payments');
     $simulation = $this->model_extension_simulator_payments->getSimulation('mercadopago_billet');
     $order_id = $this->session->data['order_id'];
     $order_info = $this->model_checkout_order->getOrder($order_id);
     $customer = $this->model_account_customer->getCustomer($order_info['customer_id']);
     $products = array();
     foreach ($this->cart->getProducts() as $product) {
         $products[] = array('id' => $product['model'], 'title' => $product['name'], 'description' => $product['name'], 'picture_url' => $product['image'], 'quantity' => $product['quantity'], 'unit_price' => $product['price']);
     }
     $cellphone = preg_replace('/[\\D]/', '', $order_info['cellphone']);
     $area_code = substr($cellphone, 0, 2);
     $number = substr($cellphone, 2);
     $total = $order_info['total'];
     if ($simulation['status'] && (int) $simulation['interest_total'] > 0) {
         $total *= 1 + $simulation['interest_total'] / 100;
     }
     $param = array('transaction_amount' => (double) number_format($order_info['total'], 2, '.', ''), 'description' => 'Compra realizada na ' . $this->config->get('config_name'), 'payment_method_id' => 'bolbradesco', 'payer' => array('email' => $order_info['email']), 'external_reference' => $order_id, 'statement_descriptor' => $this->config->get('config_name'), 'notification_url' => $this->url->link('payment/mercadopago_card/callback', '', 'SSL'), 'additional_info' => array('items' => $products, 'payer' => array('first_name' => $order_info['firstname'], 'last_name' => $order_info['lastname'], 'phone' => array('area_code' => $area_code, 'number' => $number), 'address' => array('zip_code' => preg_replace('/[\\D]/', '', $order_info['payment_postcode']), 'street_name' => $order_info['payment_address_1'], 'street_number' => $order_info['payment_number_home']), 'registration_date' => $customer['date_added']), 'shipments' => array('receiver_address' => array('zip_code' => $order_info['shipping_postcode'], 'street_name' => $order_info['shipping_address_1'], 'street_number' => $order_info['shipping_number_home'], 'floor' => $order_info['shipping_address_2']))));
     require_once DIR_SYSTEM . '/library/mercadopago/mercadopago.php';
     $mp = new MP($this->config->get('mercadopago_card_access_token'));
     $payment = $mp->post('/v1/payments', $param);
     $this->load->model('checkout/order');
     $this->model_checkout_order->addOrderHistory($this->session->data['order_id'], $this->config->get('config_status_awaiting_payment'));
     $this->session->data['paymentLink'] = $payment['response']['transaction_details']['external_resource_url'];
     $this->load->model('payment/mercadopago_billet');
     $this->model_payment_mercadopago_billet->addBilletMercadoPago($this->session->data['order_id'], $this->session->data['paymentLink']);
     $this->response->addHeader('Content-Type: application/json');
     $this->response->setOutput(json_encode(array()));
 }

 public function postPago()
 {
     $core = Mage::getModel('mercadopago/core');
     //seta sdk php mercadopago
     $client_id = Mage::getStoreConfig('payment/mercadopago/client_id');
     $client_secret = Mage::getStoreConfig('payment/mercadopago/client_secret');
     $mp = new MP($client_id, $client_secret);
     //monta a prefernecia
     $pref = $this->makePreference();
     Mage::helper('mercadopago')->log("make array", 'mercadopago-standard.log', $pref);
     //faz o posto do pagamento
     $response = $mp->create_preference($pref);
     Mage::helper('mercadopago')->log("create preference result", 'mercadopago-standard.log', $response);
     $array_assign = array();
     if ($response['status'] == 200 || $response['status'] == 201) {
         $payment = $response['response'];
         $init_point = $payment['init_point'];
         $array_assign = array("init_point" => $init_point, "type_checkout" => $this->getConfigData('type_checkout'), "iframe_width" => $this->getConfigData('iframe_width'), "iframe_height" => $this->getConfigData('iframe_height'), "banner_checkout" => $this->getConfigData('banner_checkout'), "status" => 201);
         Mage::helper('mercadopago')->log("Array preference ok", 'mercadopago-standard.log');
     } else {
         $array_assign = array("message" => Mage::helper('mercadopago')->__('An error has occurred. Please refresh the page.'), "json" => json_encode($response), "status" => 400);
         Mage::helper('mercadopago')->log("Array preference error", 'mercadopago-standard.log');
     }
     return $array_assign;
 }

 public function register(Application $app)
 {
     $app['mp'] = $app->share(function () use($app) {
         $mp = new MP($app['id_client'], $app['id_client_secret']);
         $mp->sandbox_mode(TRUE);
         return $mp;
     });
 }

function pay($item)
{
    require_once "mercadopago.php";
    $item_decoded = json_decode($item);
    $mp = new MP("2825512066514146", "2KIKPJLtXNGBlRMLK2h3IY8WI6g8dfrB");
    $preference_data = array("items" => array(array("title" => $item_decoded->titulo, "currency_id" => "ARS", "category_id" => $item_decoded->categoria, "quantity" => intval($item_decoded->cantidad), "unit_price" => floatval($item_decoded->precio))), "payer" => array("email" => $item_decoded->mail));
    $preference = $mp->create_preference($preference_data);
    echo json_encode($preference);
}

 private function getMethods($token)
 {
     try {
         $mp = new MP($token);
         $methods = $mp->get("/v1/payment_methods");
         return $methods;
     } catch (Exception $e) {
         $this->load->language('payment/mp_ticket');
         $error = array('status' => 400, 'message' => $this->language->get('error_access_token'));
         return $error;
     }
 }

 /**
  * generates HTML for apy buton
  * @param  Model_Order $order 
  * @return string                 
  */
 public static function button(Model_Order $order)
 {
     if (Core::config('payment.mercadopago_client_id') != '' and Core::config('payment.mercadopago_client_secret') != '' and Theme::get('premium') == 1) {
         // Include Mercadopago library
         require Kohana::find_file('vendor/mercadopago', 'mercadopago');
         // Create an instance with your MercadoPago credentials (CLIENT_ID and CLIENT_SECRET):
         $mp = new MP(core::config('payment.mercadopago_client_id'), core::config('payment.mercadopago_client_secret'));
         $preference_data = array("items" => array(array("id" => $order->id_order, "title" => $order->product->title, "currency_id" => $order->currency, "picture_url" => $order->product->get_first_image(), "description" => Text::limit_chars(Text::removebbcode($order->product->description), 30, NULL, TRUE), "category_id" => $order->product->category->name, "quantity" => 1, "unit_price" => self::money_format($order->amount))), "payer" => array("name" => Auth::instance()->get_user()->name, "email" => Auth::instance()->get_user()->email), "back_urls" => array("success" => Route::url('oc-panel', array('controller' => 'profile', 'action' => 'orders')), "failure" => Route::url('default', array('controller' => 'ad', 'action' => 'checkout', 'id' => $order->id_order))), "auto_return" => "approved", "notification_url" => Route::url('default', array('controller' => 'mercadopago', 'action' => 'ipn', 'id' => $order->id_order)), "expires" => false);
         $preference = $mp->create_preference($preference_data);
         $link = $preference["response"]["init_point"];
         return View::factory('pages/mercadopago/button', array('link' => $link));
     }
     return '';
 }

function pago($atts){
    require_once(__DIR__."/mvc/Factory.php");
    require_once(__DIR__.'/mercadopago/lib/mercadopago.php');
    $atts['cuantos']=($atts['cuantos']==null)?1:$atts['cuantos'];
    $factory=new MP_Factory();
    $mydb=$factory->myDB();
    $products=$mydb->print_all_items_from_tables("Productos",'*','title',$atts['title']);
    $proveedor=$mydb->print_all_items_from_tables("MP_Admin",'*','username',$products['provedor']);
    $encrypt=preg_split('/-/',$_COOKIE['MP_user']);
    $user=$mydb->print_all_items_from_tables('MP_user','MP_nombre,MP_email,MP_password','id',$encrypt[0]);
    if($user[1]['MP_password']==$encrypt[1]){
        $MP_user=$user[1];
    }else{
        $user='';
    }
    $mp = new MP($proveedor['identificador'],
                 $proveedor['Client_pass']);
    $proveedor=$proveedor[1];
    $products=$products[1];
    $mp = new MP($proveedor['identificador'],
                 $proveedor['Client_pass']);
    $price=round($products['unit_price'], 2);
    $preference_data = array(
    "items" => array(
       array(
           "title" => $products['title'],
           "quantity" => intval($atts['cuantos']),
           "currency_id" => "MXN",
           "unit_price" => $price,

       )
    ),
    "payer"=>array(
        "name"=>$MP_user['MP_nombre'],
        "email"=>$MP_user['MP_email']
    )
);
    $preference = $mp->create_preference ($preference_data);
    header("location:".$preference[response][init_point]);
    exit();

}

function MP_link_button($atts)
{
    require_once dirname(__DIR__) . '/mercadopago/lib/mercadopago.php';
    $factory = new MP_Factory();
    $mydb = $factory->myDB();
    $proveedor = $mydb->print_all_items_from_tables("MP_Admin", '*', 'username', $atts['proveedor']);
    $encrypt = preg_split('/-/', $_COOKIE['MP_user']);
    $user = $mydb->print_all_items_from_tables('MP_user', 'MP_nombre,MP_email,MP_password', 'id', $encrypt[0]);
    if ($user[1]['MP_password'] == $encrypt[1]) {
        $MP_user = $user[1];
    } else {
        $user = '';
    }
    $proveedor = $proveedor[1];
    $mp = new MP($proveedor['identificador'], $proveedor['Client_pass']);
    $price = round($atts['precio'], 2);
    $preference_data = array("items" => array(array("title" => $atts['title'], "quantity" => 1, "currency_id" => $atts['currency'], "unit_price" => $price)), "payer" => array("name" => $MP_user['MP_nombre'], "email" => $MP_user['MP_email']));
    $preference = $mp->create_preference($preference_data);
    return "<a href='" . $preference[response][init_point] . "' class='MP_button' >{$atts['title']}</a>";
}

 public function toOptionArray()
 {
     $methods = array();
     //adiciona um valor vazio caso nao queria excluir nada
     $methods[] = array("value" => "", "label" => "");
     $client_id = Mage::getStoreConfig('payment/mercadopago/client_id');
     $client_secret = Mage::getStoreConfig('payment/mercadopago/client_secret');
     //verifico se as credenciais não são vazias, caso sejam não é possível obte-los
     if ($client_id != "" && $client_secret != "") {
         $mp = new MP($client_id, $client_secret);
         $access_token = $mp->get_access_token();
         Mage::helper('mercadopago')->log("Get payment methods by country... ", 'mercadopago.log');
         Mage::helper('mercadopago')->log("API payment methods: " . "/v1/payment_methods?access_token=" . $access_token, 'mercadopago.log');
         $response = MPRestClient::get("/v1/payment_methods?access_token=" . $access_token);
         Mage::helper('mercadopago')->log("API payment methods", 'mercadopago.log', $response);
         $response = $response['response'];
         foreach ($response as $m) {
             if ($m['id'] != 'account_money') {
                 $methods[] = array('value' => $m['id'], 'label' => Mage::helper('adminhtml')->__($m['name']));
             }
         }
     }
     return $methods;
 }

function probandoMP()
{
    $sessionid = "1234567890";
    $payer = array("name" => "Cristian ", "surname" => "Tala S.", "email" => "[email protected]", "date_created" => "", "phone" => array("area_code" => "-", "number" => "+56991629602"), "address" => array("zip_code" => "00000", "street_name" => "Presidente Kennedy", "street_number" => "5933"), "identification" => array("number" => "null", "type" => "null"));
    $shipments = array("receiver_address" => array("floor" => "-", "zip_code" => "000000", "street_name" => "DESTINO", "apartment" => "-", "street_number" => "-"));
    $items = array(array("id" => $sessionid, "title" => "Producto", "description" => "x", "quantity" => 1, "unit_price" => 10, "currency_id" => "CLP", "picture_url" => "", "category_id" => ""));
    //set back url
    $back_urls = array("pending" => "URLPENDING", "success" => "URLSUCCESS");
    //mount array pref
    $pref = array();
    $pref['external_reference'] = $sessionid;
    $pref['payer'] = $payer;
    $pref['shipments'] = $shipments;
    $pref['items'] = $items;
    $pref['back_urls'] = $back_urls;
    $pref['payment_methods'] = $payment_methods;
    $mp = new MP(CTALA_MP_CLIENTID, CTALA_MP_CLIENTSCRETET);
    $preferenceResult = $mp->create_preference($pref);
    $result = "";
    $result .= "<pre>";
    if ($preferenceResult['status'] == 201) {
        if (true) {
            $link = $preferenceResult['response']['sandbox_init_point'];
        } else {
            $link = $preferenceResult['response']['init_point'];
        }
    } else {
        $result .= "Error: " . $preferenceResult['status'];
    }
    $result .= print_r($preferenceResult, true);
    $filters = array("id" => null, "site_id" => null, "external_reference" => null);
    $searchResult = $mp->search_payment($filters);
    $result .= print_r($searchResult, true);
    $result .= "</pre>";
    return $result;
}

 public function setSponsor()
 {
     Mage::helper('mercadopago')->log("Sponsor_id: " . Mage::getStoreConfig('payment/mercadopago/sponsor_id'), 'mercadopago.log');
     $sponsor_id = "";
     Mage::helper('mercadopago')->log("Valid user test", 'mercadopago.log');
     $client_id = Mage::getStoreConfig('payment/mercadopago/client_id');
     Mage::helper('mercadopago')->log("Get client id: " . $client_id, 'mercadopago.log');
     $client_secret = Mage::getStoreConfig('payment/mercadopago/client_secret');
     Mage::helper('mercadopago')->log("Get client secret: " . $client_secret, 'mercadopago.log');
     $mp = new MP($client_id, $client_secret);
     $user = $mp->get("/users/me");
     Mage::helper('mercadopago')->log("API Users response", 'mercadopago.log', $user);
     //caso api retorne 403 (error no get) verifica se a mensagem e do usuario com test credentials
     if ($user['status'] == 200 && !in_array("test_user", $user['response']['tags'])) {
         $sponsor_id = 1;
         $country = Mage::getStoreConfig('payment/mercadopago/country');
         switch ($user['response']['site_id']) {
             case 'MLA':
                 $sponsor_id = 186172525;
                 break;
             case 'MLB':
                 $sponsor_id = 186175129;
                 break;
             case 'MLM':
                 $sponsor_id = 186175064;
                 break;
             default:
                 $sponsor_id = "";
                 break;
         }
         Mage::helper('mercadopago')->log("Sponsor id setted", 'mercadopago.log', $sponsor_id);
     }
     $core = new Mage_Core_Model_Resource_Setup('core_setup');
     $core->setConfigData('payment/mercadopago/sponsor_id', $sponsor_id);
     Mage::helper('mercadopago')->log("Sponsor saved", 'mercadopago.log', $sponsor_id);
 }

    <body>
        <?php 
/**
 * MercadoPago SDK
 * Search approved payments in last month
 * @date 2012/03/29
 * @author hcasatti
 */
// Include Mercadopago library
require_once "../../lib/mercadopago.php";
// Create an instance with your MercadoPago credentials (CLIENT_ID and CLIENT_SECRET):
// Argentina: https://www.mercadopago.com/mla/herramientas/aplicaciones
// Brasil: https://www.mercadopago.com/mlb/ferramentas/aplicacoes
// Mexico: https://www.mercadopago.com/mlm/herramientas/aplicaciones
// Venezuela: https://www.mercadopago.com/mlv/herramientas/aplicaciones
$mp = new MP("CLIENT_ID", "CLIENT_SECRET");
// Sets the filters you want
$filters = array("range" => "date_created", "begin_date" => "NOW-1MONTH", "end_date" => "NOW", "status" => "approved", "operation_type" => "regular_payment");
// Search payment data according to filters
$searchResult = $mp->search_payment($filters);
// Show payment information
?>
        <table border='1'>
            <tr><th>id</th><th>site_id</th><th>date_created</th><th>operation_type</th><th>external_reference</th></tr>
            <?php 
foreach ($searchResult["response"]["results"] as $payment) {
    ?>
                <tr>
                    <td><?php 
    echo $payment["collection"]["id"];
    ?>

<?php

require_once 'mercadopago.php';
$mp = new MP("CLIENT_ID", "CLIENT_SECRET");
$filters = array("status" => "approved");
$search_result = $mp->search_payment($filters, 0, 10);
print_r($search_result);

 public function testLongLiveAccessToken()
 {
     $mp = new MP($this->credentials["access_token"]);
     $this->assertTrue($mp->get_access_token() == $this->credentials["access_token"]);
 }

<?php

include_once '../../../config/config.inc.php';
include_once 'mercadopago.php';
if (isset($_REQUEST['topic']) && isset($_REQUEST['id'])) {
    $id = $_REQUEST['id'];
    $client_id = Db::getInstance()->getRow("SELECT value FROM " . _DB_PREFIX_ . "configuration WHERE name = 'mercadopago_CLIENT_ID'");
    $client_secret = Db::getInstance()->getRow("SELECT value FROM " . _DB_PREFIX_ . "configuration WHERE name = 'mercadopago_CLIENT_SECRET'");
    $sandbox = Db::getInstance()->getRow("SELECT value FROM " . _DB_PREFIX_ . "configuration WHERE name = 'mercadopago_SANDBOX'");
    $mp = new MP($client_id['value'], $client_secret['value']);
    $mp->sandbox_mode($sandbox['value'] == "active" ? true : false);
    $dados = $mp->get_payment_info($id);
    $dados = $dados['response'];
    $order_id = $dados['collection']['external_reference'];
    $order_status = $dados["collection"]["status"];
    switch ($order_status) {
        case 'approved':
            $nomestatus = "mercadopago_STATUS_1";
            break;
        case 'pending':
            $nomestatus = "mercadopago_STATUS_0";
            break;
        case 'in_process':
            $nomestatus = "mercadopago_STATUS_0";
            break;
        case 'reject':
            $nomestatus = "mercadopago_STATUS_2";
            break;
        case 'refunded':
            $nomestatus = "mercadopago_STATUS_2";
            break;

<?php

ini_set('display_errors', 1);
ini_set('display_startup_erros', 1);
error_reporting(E_ALL);
require_once "lib/mercadopago.php";
// 5031 4332 1540 6351
$mp = new MP("3821444876288488", "1MsZwpHqFP2MDPh1d4IaXsIrUAbIXbjt");
print_r($_REQUEST);
$valor = rand(10, 350);
$preference = array("amount" => (double) $_REQUEST['amount'], "installments" => (int) $_REQUEST['installmentsOption'], "payment_method_id" => $_REQUEST['paymentMethod'], "currency_id" => "BRL", "card_token_id" => $_REQUEST['card_token_id'], "external_reference" => "my_order_1234", "items" => array(array("id" => "2133", "title" => "Titulo do produto", "description" => "Descricao ", "picture_url" => "http=>//2.bp.blogspot.com/-Zu-IpE01s5Y/TtEAy89fUzI/AAAAAAAAAXE/0_ZrT5SUbUQ/s1600/unicef.jpg", "category_id" => "others", "quantity" => 1, "unit_price" => (double) $_REQUEST['amount'])), "customer" => array("email" => "[email protected]", "first_name" => "name", "last_name" => "lastName", "phone" => array("area_code" => "011", "number" => "38882377"), "identification" => array("type" => "CPF", "number" => "19119119100"), "address" => array("zip_code" => "06541005", "street_name" => "Street name", "street_number" => 1), "registration_date" => "2014-06-28T16:53:03.176-04:00"), "shipments" => array("receiver_address" => array("zip_code" => "06541005", "street_name" => "Street name", "street_number" => 1, "floor" => "5", "apartment" => "c")));
$preferenceResult = $mp->invisible($preference);
?>

<?php

error_reporting(E_ALL);
ini_set('display_errors', 1);
require_once "lib/mercadopago.php";
$mp = new MP("3821444876288488", "1MsZwpHqFP2MDPh1d4IaXsIrUAbIXbjt");
$arquivo = fopen('result_ipn.php', 'a');
fwrite($arquivo, "\n POST <? echo('<pre>'); ?> " . $_SERVER['REQUEST_URI'] . "<? echo('</pre>'); ?><br><br>");
fclose($arquivo);
switch ($_GET["topic"]) {
    case "payment":
        $payment_info = $mp->get_payment_info($_GET["id"]);
        if ($payment_info["status"] == 200) {
            $arquivo = fopen('result_ipn.php', 'a');
            fwrite($arquivo, "\n<? echo('<pre>'); ?> " . json_encode($payment_info) . "<? echo('</pre>'); ?><br><hr><br>");
            fclose($arquivo);
        }
        break;
    case "preapproval":
        $payment_info = $mp->get_preapproval_payment($_GET["id"]);
        if ($payment_info["status"] == 200) {
            $arquivo = fopen('result_ipn.php', 'a');
            fwrite($arquivo, "\n<pre> " . json_encode($payment_info) . "</pre><br><hr><br>");
            fclose($arquivo);
        }
        break;
    case "authorized_payment":
        $payment_info = $mp->get_authorized_payment($_GET["id"]);
        if ($payment_info["status"] == 200) {
            $arquivo = fopen('result_ipn.php', 'a');
            fwrite($arquivo, "\n<pre> " . json_encode($payment_info) . "</pre><br><hr><br>");

function function_mercado_pago($seperator, $sessionid)
{
    global $wpdb, $wpsc_cart;
    //This grabs the purchase log id from the database
    //that refers to the $sessionid
    $purchase_log = $wpdb->get_row("SELECT * FROM `" . WPSC_TABLE_PURCHASE_LOGS . "` WHERE `sessionid`= " . $sessionid . " LIMIT 1", ARRAY_A);
    //This grabs the users info using the $purchase_log
    // from the previous SQL query
    $usersql = "SELECT `" . WPSC_TABLE_SUBMITED_FORM_DATA . "`.value,\n\t\t`" . WPSC_TABLE_CHECKOUT_FORMS . "`.`name`,\n\t\t`" . WPSC_TABLE_CHECKOUT_FORMS . "`.`unique_name` FROM\n\t\t`" . WPSC_TABLE_CHECKOUT_FORMS . "` LEFT JOIN\n\t\t`" . WPSC_TABLE_SUBMITED_FORM_DATA . "` ON\n\t\t`" . WPSC_TABLE_CHECKOUT_FORMS . "`.id =\n\t\t`" . WPSC_TABLE_SUBMITED_FORM_DATA . "`.`form_id` WHERE\n\t\t`" . WPSC_TABLE_SUBMITED_FORM_DATA . "`.`log_id`=" . $purchase_log['id'];
    $userinfo = $wpdb->get_results($usersql, ARRAY_A);
    // configs
    $data = array();
    $data['client_id'] = get_option('mercadopago_client_id');
    $data['client_secret'] = get_option('mercadopago_client_secret');
    $data['sucess'] = get_option('mercadopago_url_sucess');
    $data['pending'] = get_option('mercadopago_url_pending');
    $data['currency'] = get_option('mercadopago_currency');
    $sandbox = get_option('mercadopago_sandbox') == "active" ? true : false;
    $type_checkout = get_option('mercadopago_typecheckout');
    $category = get_option('mercadopago_category');
    // order info
    $data['total'] = $wpsc_cart->total_price;
    //client
    $arr_info = array();
    foreach ((array) $userinfo as $key => $value) {
        $arr_info[$value['unique_name']] = $value['value'];
    }
    // products
    foreach ($wpsc_cart->cart_items as $i => $Item) {
        $data['PROD_NAME' . $i] = $Item->product_name;
        $data['PROD_TOTAL' . $i] = number_format($Item->unit_price, 2);
        $data['PROD_NUMBER' . $i] = $i;
        $data['PROD_QTY' . $i] = $Item->quantity;
        $data['prod'] .= $Item->product_name . '*' . $Item->quantity;
        if ($Item->thumbnail_image) {
            foreach ($Item->thumbnail_image as $key => $Image) {
                if ($key == 'guid') {
                    $data['image' . $i] = $Image;
                }
            }
        } else {
            $data['image0'] = 'https://www.mercadopago.com/org-img/MP3/home/logomp3.gif';
        }
    }
    // exclude methods
    $shippingpostcode = array_key_exists("shippingpostcode", $arr_info) && $arr_info['shippingpostcode'] != "" ? $arr_info['shippingpostcode'] : "uninformed";
    $shippingaddress = array_key_exists("shippingaddress", $arr_info) && $arr_info['shippingaddress'] != "" ? $arr_info['shippingaddress'] : "uninformed";
    $shippingcity = array_key_exists("shippingcity", $arr_info) && $arr_info['shippingcity'] != "" ? $arr_info['shippingcity'] : "uninformed";
    $shippingstate = array_key_exists("shippingstate", $arr_info) && $arr_info['shippingstate'] != "" ? $arr_info['shippingstate'] : "uninformed";
    $shippingcountry = array_key_exists("shippingcountry", $arr_info) && $arr_info['shippingcountry'] != "" ? $arr_info['shippingcountry'] : "uninformed";
    $shipments = array("receiver_address" => array("floor" => "-", "zip_code" => $shippingpostcode, "street_name" => $shippingaddress . " - " . $shippingcity . " - " . $shippingstate . " - " . $shippingcountry, "apartment" => "-", "street_number" => "-"));
    $billingpostcode = array_key_exists("billingpostcode", $arr_info) && $arr_info['billingpostcode'] != "" ? $arr_info['billingpostcode'] : "uninformed";
    $billingaddress = array_key_exists("billingaddress", $arr_info) && $arr_info['billingaddress'] != "" ? $arr_info['billingaddress'] : "uninformed";
    $billingcity = array_key_exists("billingcity", $arr_info) && $arr_info['billingcity'] != "" ? $arr_info['billingcity'] : "uninformed";
    $billingstate = array_key_exists("billingstate", $arr_info) && $arr_info['billingstate'] != "" ? $arr_info['billingstate'] : "uninformed";
    $billingcountry = array_key_exists("billingcountry", $arr_info) && $arr_info['billingcountry'] != "" ? $arr_info['billingcountry'] : "uninformed";
    $billingphone = array_key_exists("billingphone", $arr_info) && $arr_info['billingphone'] != "" ? $arr_info['billingphone'] : "uninformed";
    $payer = array("name" => $data['billingfirstname'], "surname" => $data['billinglastname'], "email" => $data['email'], "date_created" => "", "phone" => array("area_code" => "-", "number" => $billingphone), "address" => array("zip_code" => $billingpostcode, "street_name" => $billingaddress . " - " . $billingcity . " - " . $billingstate . " - " . $billingcountry, "street_number" => "-"), "identification" => array("number" => "null", "type" => "null"));
    $items = array(array("id" => $sessionid, "title" => $data['PROD_NAME0'], "description" => $data['PROD_NAME0'] . " x " . $data['PROD_QTY0'], "quantity" => 1, "unit_price" => $data['total'], "currency_id" => $data['currency'], "picture_url" => $data['image0'], "category_id" => $category));
    //excludes_payment_methods
    $exclude = get_option('mercadopago_methods');
    $installments = (int) get_option('mercadopago_limit_payments');
    if ($exclude != '') {
        //case exist exclude methods
        $methods_excludes = preg_split("/[\\s,]+/", $exclude);
        $excludemethods = array();
        foreach ($methods_excludes as $exclude) {
            if ($exclude != "") {
                $excludemethods[] = array('id' => $exclude);
            }
        }
        $payment_methods = array("installments" => $installments, "excluded_payment_methods" => $excludemethods);
    } else {
        //case not exist exclude methods
        $payment_methods = array("installments" => $installments);
    }
    //set back url
    $back_urls = array("pending" => $data['pending'], "success" => $data['sucess']);
    //mount array pref
    $pref = array();
    $